mirror of
https://github.com/PaperMC/Paper.git
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167 lines
5.2 KiB
Diff
167 lines
5.2 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Jake Potrebic <jake.m.potrebic@gmail.com>
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Date: Thu, 2 Jul 2020 16:10:10 -0700
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Subject: [PATCH] Added PlayerTradeEvent
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[Amendment: Alexander <protonull@protonmail.com>]
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PlayerTradeEvent is used for player purchases from villagers and wandering
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traders, but not custom merchants created via Bukkit.createMerchant(). During
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discussions in Discord it was decided that it'd be better to add a new event
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that PlayerTradeEvent inherits from than change getVillager()'s annotation to
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@Nullable, especially since that'd also infringe on the implication of the
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event being about villager trades.
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diff --git a/src/main/java/io/papermc/paper/event/player/PlayerPurchaseEvent.java b/src/main/java/io/papermc/paper/event/player/PlayerPurchaseEvent.java
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new file mode 100644
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index 0000000000000000000000000000000000000000..61c62877c38e27eacc20aa43ef02dc43e9b50bfc
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--- /dev/null
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+++ b/src/main/java/io/papermc/paper/event/player/PlayerPurchaseEvent.java
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@@ -0,0 +1,109 @@
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+package io.papermc.paper.event.player;
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+
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+import com.google.common.base.Preconditions;
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+import org.bukkit.entity.Player;
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+import org.bukkit.event.Cancellable;
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+import org.bukkit.event.HandlerList;
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+import org.bukkit.event.player.PlayerEvent;
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+import org.bukkit.inventory.MerchantRecipe;
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+import org.jetbrains.annotations.ApiStatus;
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+import org.jetbrains.annotations.NotNull;
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+
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+/**
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+ * Called when a player trades with a standalone merchant GUI.
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+ */
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+public class PlayerPurchaseEvent extends PlayerEvent implements Cancellable {
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+
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+ private static final HandlerList HANDLER_LIST = new HandlerList();
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+
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+ private boolean rewardExp;
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+ private boolean increaseTradeUses;
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+ private MerchantRecipe trade;
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+
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+ private boolean cancelled;
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+
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+ @ApiStatus.Internal
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+ public PlayerPurchaseEvent(@NotNull Player player,
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+ @NotNull MerchantRecipe trade,
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+ boolean rewardExp,
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+ boolean increaseTradeUses) {
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+ super(player);
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+ setTrade(trade);
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+ this.rewardExp = rewardExp;
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+ this.increaseTradeUses = increaseTradeUses;
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+ }
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+
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+ /**
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+ * Gets the associated trade with this event
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+ *
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+ * @return the trade
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+ */
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+ @NotNull
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+ public MerchantRecipe getTrade() {
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+ return this.trade;
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+ }
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+
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+ /**
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+ * Sets the trade. This is then used to determine the next prices
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+ *
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+ * @param trade the trade to use
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+ */
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+ public void setTrade(@NotNull MerchantRecipe trade) {
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+ Preconditions.checkArgument(trade != null, "Trade cannot be null!");
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+ this.trade = trade;
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+ }
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+
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+ /**
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+ * @return will trade try to reward exp
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+ */
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+ public boolean isRewardingExp() {
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+ return this.rewardExp;
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+ }
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+
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+ /**
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+ * Sets whether the trade will try to reward exp
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+ *
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+ * @param rewardExp try to reward exp
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+ */
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+ public void setRewardExp(boolean rewardExp) {
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+ this.rewardExp = rewardExp;
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+ }
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+
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+ /**
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+ * @return whether the trade will count as a use of the trade
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+ */
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+ public boolean willIncreaseTradeUses() {
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+ return this.increaseTradeUses;
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+ }
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+
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+ /**
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+ * Sets whether the trade will count as a use
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+ *
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+ * @param increaseTradeUses {@code true} to count, {@code false} otherwise
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+ */
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+ public void setIncreaseTradeUses(boolean increaseTradeUses) {
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+ this.increaseTradeUses = increaseTradeUses;
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+ }
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+
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+ @Override
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+ public boolean isCancelled() {
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+ return this.cancelled;
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+ }
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+
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+ @Override
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+ public void setCancelled(boolean cancel) {
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+ this.cancelled = cancel;
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+ }
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+
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+ @NotNull
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+ @Override
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+ public HandlerList getHandlers() {
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+ return HANDLER_LIST;
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+ }
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+
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+ @NotNull
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+ public static HandlerList getHandlerList() {
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+ return HANDLER_LIST;
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+ }
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+
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+}
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diff --git a/src/main/java/io/papermc/paper/event/player/PlayerTradeEvent.java b/src/main/java/io/papermc/paper/event/player/PlayerTradeEvent.java
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new file mode 100755
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index 0000000000000000000000000000000000000000..559d1a3c783e6c726f48d1c88b2ff8c0888890ac
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--- /dev/null
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+++ b/src/main/java/io/papermc/paper/event/player/PlayerTradeEvent.java
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@@ -0,0 +1,32 @@
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+package io.papermc.paper.event.player;
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+
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+import org.bukkit.entity.AbstractVillager;
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+import org.bukkit.entity.Player;
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+import org.bukkit.inventory.MerchantRecipe;
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+import org.jetbrains.annotations.ApiStatus;
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+import org.jetbrains.annotations.NotNull;
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+
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+/**
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+ * Called when a player trades with a villager or wandering trader
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+ */
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+public class PlayerTradeEvent extends PlayerPurchaseEvent {
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+
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+ private final AbstractVillager villager;
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+
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+ @ApiStatus.Internal
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+ public PlayerTradeEvent(@NotNull Player player, @NotNull AbstractVillager villager, @NotNull MerchantRecipe trade, boolean rewardExp, boolean increaseTradeUses) {
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+ super(player, trade, rewardExp, increaseTradeUses);
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+ this.villager = villager;
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+ }
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+
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+ /**
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+ * Gets the Villager or Wandering trader associated with this event
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+ *
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+ * @return the villager or wandering trader
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+ */
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+ @NotNull
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+ public AbstractVillager getVillager() {
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+ return this.villager;
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+ }
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+
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+}
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